Do Water Bears Have Eyes?
Tardigrades Lumber Around in the Water, Like a Bear Might When Crossing a River. Hence Their Nickname, “Water Bears. ” Tardigrades Can Move Their Heads...
Tardigrades lumber around in the water, like a bear might when crossing a river. Hence their nickname, “water bears.” Tardigrades can move their heads independent of their bodies, and some species have eyes. When you look at them under the microscope, they stare straight back, unfazed by humans.
Can water bears see?
“You can just see them with the naked eye,” Mark Blaxter says. "However, because tardigrades are see-through they are difficult to see unless they are picked out.” They can be found living in mosses, lichens and algae. ... Most have a pair of small black eyes, some have body plates.
Do water bears have brains?
Tardigrades have a dorsal brain atop a paired ventral nervous system. (Humans have a dorsal brain and a single dorsal nervous system.) The body cavity of tardigrades is an open hemocoel that touches every cell, allowing efficient nutrition and gas exchange with no need for circulatory or respiratory systems.
Maya is a hardware enthusiast who tests and reviews smart home devices, smartphones, wearables, and audio gear. She focuses on practical consumer value and build quality.
